In 2016, Dan swam the Catalina Channel on January 16 (same day as the first Catalina swimmer, George Young) and the English Channel on August 25. He was coordinator and member of the "Out, Around, & Back" relay between Catalina and Santa Barbara Islands; and a member of two Catalina Channel relays, including a new CCSF-record mixed relay.

​Dan has also continued his extensive work in support of fellow marathon swimmers, for which he was previously honored with the 2015 MSF Streeter Award. Among other things, he kayaked all four days of S.C.A.R. in Arizona, coached the Arch Academy Zombies team on numerous open-water relays, and coached, crewed, and observed for numerous solo swimmers and relays in channel swims around the world (details). In an administrative role, Dan serves as a voting member of IMSHOF and CCSF, and as President of the La Jolla Cove Swim Club.